机械合金化致二元过渡金属非晶态合金形成规律的探讨  

STUDY ON THE REGULARITY OF FORMATIONOF THE BINARY AMORPHOUS ALLOySOF TRANSITION METALS BY ME-CHANICAL AL

作　　者：张恒[1] 张邦维[1] 吴力军[1] 万志齐 

机构地区：[1]湖南大学应用物理系,中国高等科学技术中心(世界实验室),中国科学院国际材料物理中心

出　　处：《物理学报》1994年第10期1638-1647,共10页Acta Physica Sinica

摘　　要：运用Ｍｉｅｄｅｍａ参数Φ￣＊，和尺寸因子Ｒ分别构成Ｍｉｅｄｅｍａ参数坐标和三维化学坐标成功地研究机械合金化二元过渡金属非晶合金的形成规律。基于实验事实所确定的机械合金化二元非晶的形成条件分别是和以上两判据区分机械合金化非晶态合金形成与否的准确度分别为８０％和８８％。从微观原子的相互作用以及固态反应非晶化热力学和动力学的角度分析了以上参数在描述机械合金化二元过渡族合金体系非晶形成规律的内在物理涵义以及与固态反应非晶化实现所需条件的联系。Abstract The regularities of formation of binary amorphous alloys of transition metalsby mechanical alloying were studied successfully by the Miedema coordinates △φ￣*～ and the three chemical coondinates △R/R～△φ￣*～ with the Miedemaparameters Φ￣*,. Based on experimantal data the criteria of formation the bi-nary amorphous alloys were defined asandThe total accuracies for separating the amorphous alloys formed or not by inecha-nical alloying are 80% and 88%, respectively. The physics for describing theregularities for the binary amorphous alloys of transition metals by mechanical allo-ying, and the relationship between the regularities and necessary conditions for amor-phization by solid state reaction are discussed from the view points of interactionbetween atoms and thermodynamics and dynamics for amorphization by solid statereaction . Chinese Center of Advanced Science and Technology (CCAST) (World Laborataryl, Beijing1 00080 International Centre for Materials Physics Acadeinia Sinica, 110015.

关 键 词：二元合金 金属玻璃 机械合金化 

分 类 号：TG139.8[一般工业技术—材料科学与工程]